16765506055081 has 8 divisors (see below), whose sum is σ = 19375865746560. Its totient is φ = 14208968213088.

The previous prime is 16765506055057. The next prime is 16765506055213. The reversal of 16765506055081 is 18055060556761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16765506055081 - 2⁹ = 16765506054569 is a prime.

It is a super-2 number, since 2×16765506055081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16765506053081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13455461701 + ... + 13455462946.

It is an arithmetic number, because the mean of its divisors is an integer number (2421983218320).

Almost surely, 2^{16765506055081} is an apocalyptic number.

It is an amenable number.

16765506055081 is a deficient number, since it is larger than the sum of its proper divisors (2610359691479).

16765506055081 is an equidigital number, since it uses as much as digits as its factorization.

16765506055081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26910924743.

The product of its (nonzero) digits is 7560000, while the sum is 55.

The spelling of 16765506055081 in words is "sixteen trillion, seven hundred sixty-five billion, five hundred six million, fifty-five thousand, eighty-one".